Thinkphp Pass service, verify login, log off

<?PHP/** * Pass service*/classPassportserviceextendsService {/** * Verify that the user or administrator is logged in * @return Boolean*/     Public functionIslogged ($admin=false){        //$_cookie_user=cookie (' Logged_user ');        $_session_username=$_session[C (' Cookie_prefix '). ' Username]; $_session_uid=$_session[C (' Cookie_prefix '). ' Uid]; $_session_isadmin=intval($_session[C (' Cookie_prefix '). ' ISAdmin ']); //Verifying Local System logins        if($_session_user||$_session_uid){            if(!$admin){                return true; }            ElseIf($admin&&$_session_isadmin==1){                return true; }            Else{                return false; }        }Else{            return false; }    }
Verifying Login Submission Parameters Public functionDologin ($username,$password){        if(Empty($username) ||Empty($password)){            return false; }        //$username =addcslashes ($username);                        $password=MD5($password); $map=Array(); $map[' username ']=$username; $map[' Password ']=$password; $uid=m ("User")->where ($map)->getfield (' uid '); //$password =md5 ($password); $uid =m ("user")->where ("Username= ' {$username} ' and password= ' {$password} ')->getfield (' uid ');        if(!$uid){            return false; }        Else{            return $this->online ($uid); }    }
Write Cookie and session Public functionOnline$uid){        $uid=intval($uid); if($uid<=0){            return false; }        Else{            $user=m ("User")->where ("uid={$uid} ")->field (' Uid,username,isadmin ')find (); if(!$user){                return false; }Else{                Header("p3p:cp=."); Cookies (' Logged_user ',$user[' username ']); $_session[C (' Cookie_prefix '). ' Username '] =$user[' username ']; $_session[C (' Cookie_prefix '). ' UID '] =$user[' UID ']; $_session[C (' Cookie_prefix '). ' ISAdmin '] =$user[' ISAdmin ']; $this->recordlogin ($user[' UID ']); return true; }        }    }        /** * Log off local login * @return void*/     Public functionlogoutlocal () {//Logout Session        unset($_session[C (' Cookie_prefix '). ' Username]); unset($_session[C (' Cookie_prefix '). ' Uid]); unset($_session[C (' Cookie_prefix '). ' ISAdmin ']); //Log Off CookiesCookies (' Logged_user ',NULL); }            /** * Login record * * @param int $uid User ID*/     Public functionRecordlogin ($uid) {        $login[' uid '] =$uid; $login[' IP '] =get_client_ip (); $login[' place '] = CONVERT_IP ($login[' IP ']); $login[' ctime '] = Time(); M (' Login_record ')->add ($login); }    /*background Management related methods*/        //run services, System services run automatically     Public functionrun () {return; }    //start service, not encoded     Public function_start () {return true; }    //stop service, not encoded     Public function_stop () {return true; }    //Uninstall service, not encoded     Public function_install () {return true; }    //Uninstall service, not encoded     Public function_uninstall () {return true; }}?>

Thinkphp Pass service, verify login, log off